:root{font-family:system-ui,-apple-system,Segoe UI,sans-serif;line-height:1.5;color:#1a1a2e;background:#f0f2f5;--primary: #2563eb;--primary-hover: #1d4ed8;--danger: #dc2626;--border: #e2e8f0;--muted: #64748b}*{box-sizing:border-box}body{margin:0}code{font-family:ui-monospace,monospace;font-size:.875em;background:#f1f5f9;padding:.125rem .375rem;border-radius:4px}.app{min-height:100vh}.header{display:flex;align-items:center;gap:1.5rem;padding:.75rem 1.5rem;background:#fff;border-bottom:1px solid var(--border)}.header-brand a{font-weight:700;color:inherit;text-decoration:none}.header-nav{display:flex;gap:1rem;flex:1}.header-nav a{color:var(--muted);text-decoration:none;font-weight:500}.header-nav a.active,.header-nav a:hover{color:var(--primary)}.header-user{display:flex;align-items:center;gap:.75rem;color:var(--muted);font-size:.875rem}main{max-width:1100px;margin:0 auto;padding:2rem 1.5rem}h1{margin:0 0 1.5rem;font-size:1.75rem}h2{margin:0 0 1rem;font-size:1.125rem}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.5rem}.page-header h1{margin:0}.list-toolbar{display:flex;align-items:flex-end;gap:1rem;margin-bottom:1rem;flex-wrap:wrap}.list-toolbar-search{flex:1;min-width:200px}.list-toolbar-sort{flex-direction:row;align-items:center;gap:.5rem;white-space:nowrap}.pagination{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-top:1rem;flex-wrap:wrap}.pagination-meta{color:var(--muted);font-size:.8125rem}.pagination-controls{display:flex;align-items:center;gap:.75rem}.pagination-page{color:var(--muted);font-size:.8125rem;white-space:nowrap}.loading{padding:4rem;text-align:center;color:var(--muted)}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem}.login-card{background:#fff;padding:2.5rem;border-radius:12px;box-shadow:0 4px 24px #00000014;max-width:400px;width:100%;text-align:center}.login-card h1{margin-bottom:.5rem}.login-card p{color:var(--muted);margin-bottom:1.5rem}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.5rem 1rem;border-radius:6px;font-size:.875rem;font-weight:500;border:1px solid transparent;cursor:pointer;text-decoration:none;background:transparent}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--primary-hover)}.btn-secondary{background:#fff;border-color:var(--border);color:inherit}.btn-secondary:hover:not(:disabled){background:#f8fafc}.btn-ghost{color:var(--primary);padding:.25rem .5rem}.btn-danger{color:var(--danger);padding:.25rem .5rem}.btn-danger:hover:not(:disabled){background:#fef2f2}.error{color:var(--danger);margin:0 0 1rem}.success{color:#16a34a;margin:0 0 1rem}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:1rem;margin-bottom:2rem}.stat-card{background:#fff;padding:1.25rem;border-radius:8px;border:1px solid var(--border);display:flex;flex-direction:column}.stat-value{font-size:2rem;font-weight:700;color:var(--primary)}.stat-label{color:var(--muted);font-size:.875rem}.data-table{width:100%;border-collapse:collapse;background:#fff;border-radius:8px;overflow:hidden;border:1px solid var(--border)}.data-table th,.data-table td{padding:.75rem 1rem;text-align:left;border-bottom:1px solid var(--border)}.data-table th{background:#f8fafc;font-size:.75rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}.data-table tr:last-child td{border-bottom:none}.clickable-row{cursor:pointer}.clickable-row:hover td{background:#f8fafc}.clickable-row:focus-visible{outline:2px solid var(--primary, #2563eb);outline-offset:-2px}.actions-cell{display:flex;gap:.25rem;white-space:nowrap}.badge{display:inline-block;padding:.125rem .5rem;border-radius:999px;font-size:.75rem;font-weight:500}.badge-success{background:#dcfce7;color:#166534}.badge-muted{background:#f1f5f9;color:var(--muted)}.scenario-form{background:#fff;border:1px solid var(--border);border-radius:8px;padding:1.5rem}.form-section{margin-bottom:2rem;padding-bottom:2rem;border-bottom:1px solid var(--border)}.form-section:last-of-type{border-bottom:none;margin-bottom:0;padding-bottom:0}.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem}.section-header h2{margin:0}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-bottom:1rem}label{display:flex;flex-direction:column;gap:.375rem;font-size:.875rem;font-weight:500}input,select,textarea{font:inherit;padding:.5rem .75rem;border:1px solid var(--border);border-radius:6px;background:#fff}input:focus,select:focus,textarea:focus{outline:2px solid var(--primary);outline-offset:1px}.checkbox-label{flex-direction:row;align-items:center;font-weight:400}.field-error{color:var(--danger);font-size:.75rem;font-weight:400}.field-hint{color:var(--muted);font-size:.75rem;font-weight:400}.goal-row{display:flex;align-items:flex-start;gap:1rem;margin-bottom:.75rem;padding:.75rem;background:#f8fafc;border-radius:6px}.goal-description{flex:1}.form-actions{display:flex;justify-content:flex-end;gap:.75rem;margin-top:1.5rem;padding-top:1.5rem;border-top:1px solid var(--border)}a{color:var(--primary)}.cover-preview{display:flex;align-items:center;gap:1rem;margin-bottom:.75rem}.cover-preview-image{width:96px;height:96px;object-fit:cover;border-radius:12px;border:1px solid var(--border)}.cover-preview-image.avatar-preview{border-radius:999px}.thumb{width:40px;height:40px;object-fit:cover;border-radius:8px;display:block}.thumb--circle{border-radius:999px}.thumb-placeholder{display:inline-block;width:40px;text-align:center;color:var(--muted)}.page-header-title{display:flex;align-items:center;gap:.75rem}.vocab-count-pill{display:inline-flex;align-items:center;padding:.125rem .625rem;border-radius:999px;background:#eff6ff;color:var(--primary);font-size:.8125rem;font-weight:600}.vocab-result-meta{margin:0 0 .75rem;color:var(--muted);font-size:.8125rem}.data-table.vocab-table{border-radius:12px;box-shadow:0 1px 3px #0f172a0f}.vocab-table thead th{position:sticky;top:0;z-index:1}.vocab-table tbody tr:nth-child(2n){background:#fafbfc}.vocab-table tbody tr{transition:background .12s ease}.vocab-table tbody tr:hover{background:#eff6ff}.vocab-table td{vertical-align:middle}.vocab-col-numeric{text-align:right;font-variant-numeric:tabular-nums}.vocab-word-cell{display:flex;flex-direction:column;gap:.125rem}.vocab-word{font-weight:600;font-size:.9375rem;color:#0f172a}.vocab-slug{align-self:flex-start;font-size:.6875rem;color:var(--muted);background:transparent;padding:0}.vocab-size-badge{display:inline-flex;align-items:center;gap:.375rem;padding:.1875rem .5rem;border-radius:999px;font-size:.75rem;font-weight:600;white-space:nowrap}.vocab-size-dot{width:.5rem;height:.5rem;border-radius:999px;background:currentColor;opacity:.75}.vocab-size-num{font-variant-numeric:tabular-nums;font-weight:500;opacity:.7}.vocab-size-badge--common{background:#dcfce7;color:#166534}.vocab-size-badge--frequent{background:#d1fae5;color:#047857}.vocab-size-badge--moderate{background:#fef9c3;color:#854d0e}.vocab-size-badge--rare{background:#ffedd5;color:#9a3412}.vocab-size-badge--obscure{background:#fee2e2;color:#991b1b}.vocab-state{display:flex;flex-direction:column;align-items:center;text-align:center;gap:.5rem;padding:3.5rem 1.5rem;background:#fff;border:1px solid var(--border);border-radius:12px}.vocab-state-icon{font-size:2.25rem;line-height:1}.vocab-state-title{margin:0;font-size:1rem;font-weight:600;color:#0f172a}.vocab-state-desc{margin:0;max-width:32rem;color:var(--muted);font-size:.875rem}.page-header-actions{display:flex;gap:.5rem;align-items:center}.vocab-import-summary{background:#fff;border:1px solid var(--border);border-radius:8px;padding:1rem 1.25rem;margin-bottom:1.5rem}.vocab-import-summary-head{display:flex;align-items:center;justify-content:space-between;gap:1rem}.vocab-import-summary-stats{display:flex;flex-wrap:wrap;gap:1.5rem;margin:.5rem 0 0;padding:0;list-style:none;font-size:.875rem;color:var(--muted)}.vocab-import-summary-stats strong{font-size:1.125rem;color:#1a1a2e;margin-right:.25rem}.vocab-import-errors{margin-top:.75rem;max-height:260px;overflow:auto;font-size:.8125rem}.vocab-import-errors table{width:100%;border-collapse:collapse}.vocab-import-errors th,.vocab-import-errors td{text-align:left;padding:.3rem .5rem;border-bottom:1px solid var(--border);vertical-align:top}.vocab-import-errors th{color:var(--muted);font-weight:500}